Red Hat ENTERPRISE 5.3 RELEASE NOTES Installationsanleitung PDF herunterladen (Seite 43)

system -config-display --reconfig --set-driver=vesa

You can now run firstboot. To switch back to your old settings, restore your original

/etc/X11/xorg.conf.

If your system uses the TSC timer, the gettim eofday system call may move backwards. This is

because of an overflow issue that causes the TSC timer to jump forward significantly in some cases;

when this occurs, the TSC timer will correct itself, but will ultimately register a movement backwards

in time.

This issue is particularly critical for time-sensitive systems, such as those used for transaction

systems and databases. As such, if your system needs precision timing, Red Hat strongly

recommends that you set the kernel to use another timer (for example, HPET).

Attempting to run sniff may result in an error. This is because some required packages are not

installed with dogtail.

To prevent this from occurring, install the following packages manually:

librsvg2

ghostscript-fonts

pygtk2-li/jointfilesconvert/437756/bglade

Thin Provisioning (also known as "virtual provisioning") will be first released with EMC Symmetrix

DMX3 and DMX4. Please refer to the EMC Support Matrix and Symmetrix Enginuity code release

notes for further details.

In /etc/multipath.conf, setting m ax_fds to unlimited will prevent the m ultipathd daemon

from starting up properly. As such, you should use a sufficiently high value instead for this setting.

SystemTap currently uses GCC to probe user-space events. GCC is, however, unable to provide

debuggers with precise location list information for parameters. In some cases, GCC also fails to

provide visibility on some parameters. As a consequence, SystemTap scripts that probe user-space

may return inaccurate readings.

The IBM T41 laptop model does not enter Suspend Mode properly; as such, Suspend Mode will

still consume battery life as normal. This is because Red Hat Enterprise Linux 5 does not yet include

the radeonfb module.

To work around this, add a script named hal-system -power-suspend to

/usr/share/hal/scripts/ containing the following lines:

chvt 1

radeontool light off

radeontool dac off

This script will ensure that the IBM T41 laptop enters Suspend Mode properly. T o ensure that the

system resumes normal operations properly, add the script restore-after-standby to the same

directory as well, containing the following lines:

radeontool dac on

radeontool light on

chvt 7

If the edac module is loaded, BIOS memory reporting will not work. This is because the edac module

clears the register that the BIOS uses for reporting memory errors.

The current Red Hat Enterprise Linux Driver Update Model instructs the kernel to load all available

modules (including the edac module) by default. If you wish to ensure BIOS memory reporting on

your system, you need to manually blacklist the edac modules. To do so, add the following lines to

Red Hat Enterprise Linux 5 5.3 Release Notes

4 0

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 208 209

Kommentare zu diesen Handbüchern

Keine Kommentare

Red Hat ENTERPRISE 5.3 RELEASE NOTES Installationsanleitung Seite 43

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Telefone Red Hat ENTERPRISE 5.3 RELEASE NOTES